xref: /illumos-gate/usr/src/cmd/lp/lib/filters/delfilter.c (revision 7c478bd9)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*7c478bd9Sstevel@tonic-gate 
25*7c478bd9Sstevel@tonic-gate 
26*7c478bd9Sstevel@tonic-gate #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.7	*/
27*7c478bd9Sstevel@tonic-gate /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate #include "errno.h"
30*7c478bd9Sstevel@tonic-gate #include "string.h"
31*7c478bd9Sstevel@tonic-gate #include "stdlib.h"
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate #include "lp.h"
34*7c478bd9Sstevel@tonic-gate #include "filters.h"
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate /**
37*7c478bd9Sstevel@tonic-gate  ** delfilter() - DELETE A FILTER FROM FILTER TABLE
38*7c478bd9Sstevel@tonic-gate  **/
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate int
41*7c478bd9Sstevel@tonic-gate #if	defined(__STDC__)
delfilter(char * name)42*7c478bd9Sstevel@tonic-gate delfilter (
43*7c478bd9Sstevel@tonic-gate 	char *			name
44*7c478bd9Sstevel@tonic-gate )
45*7c478bd9Sstevel@tonic-gate #else
46*7c478bd9Sstevel@tonic-gate delfilter (name)
47*7c478bd9Sstevel@tonic-gate 	char			*name;
48*7c478bd9Sstevel@tonic-gate #endif
49*7c478bd9Sstevel@tonic-gate {
50*7c478bd9Sstevel@tonic-gate 	register _FILTER	*pf;
51*7c478bd9Sstevel@tonic-gate 
52*7c478bd9Sstevel@tonic-gate 
53*7c478bd9Sstevel@tonic-gate 	if (!name || !*name) {
54*7c478bd9Sstevel@tonic-gate 		errno = EINVAL;
55*7c478bd9Sstevel@tonic-gate 		return (-1);
56*7c478bd9Sstevel@tonic-gate 	}
57*7c478bd9Sstevel@tonic-gate 
58*7c478bd9Sstevel@tonic-gate 	if (STREQU(NAME_ALL, name)) {
59*7c478bd9Sstevel@tonic-gate 		trash_filters ();
60*7c478bd9Sstevel@tonic-gate 		goto Done;
61*7c478bd9Sstevel@tonic-gate 	}
62*7c478bd9Sstevel@tonic-gate 
63*7c478bd9Sstevel@tonic-gate 	/*
64*7c478bd9Sstevel@tonic-gate 	 * Don't need to check for ENOENT, because if it is set,
65*7c478bd9Sstevel@tonic-gate 	 * well that's what we want to return anyway!
66*7c478bd9Sstevel@tonic-gate 	 */
67*7c478bd9Sstevel@tonic-gate 	if (!filters && get_and_load() == -1 /* && errno != ENOENT */ )
68*7c478bd9Sstevel@tonic-gate 		return (-1);
69*7c478bd9Sstevel@tonic-gate 
70*7c478bd9Sstevel@tonic-gate 	if (!(pf = search_filter(name))) {
71*7c478bd9Sstevel@tonic-gate 		errno = ENOENT;
72*7c478bd9Sstevel@tonic-gate 		return (-1);
73*7c478bd9Sstevel@tonic-gate 	}
74*7c478bd9Sstevel@tonic-gate 
75*7c478bd9Sstevel@tonic-gate 	free_filter (pf);
76*7c478bd9Sstevel@tonic-gate 	for (; pf->name; pf++)
77*7c478bd9Sstevel@tonic-gate 		*pf = *(pf+1);
78*7c478bd9Sstevel@tonic-gate 
79*7c478bd9Sstevel@tonic-gate 	nfilters--;
80*7c478bd9Sstevel@tonic-gate 	filters = (_FILTER *)Realloc(
81*7c478bd9Sstevel@tonic-gate 		(char *)filters, (nfilters + 1) * sizeof(_FILTER)
82*7c478bd9Sstevel@tonic-gate 	);
83*7c478bd9Sstevel@tonic-gate 	if (!filters) {
84*7c478bd9Sstevel@tonic-gate 		errno = ENOMEM;
85*7c478bd9Sstevel@tonic-gate 		return (-1);
86*7c478bd9Sstevel@tonic-gate 	}
87*7c478bd9Sstevel@tonic-gate 
88*7c478bd9Sstevel@tonic-gate /*	filters[nfilters].name = 0; */	/* last for loop above did this */
89*7c478bd9Sstevel@tonic-gate 
90*7c478bd9Sstevel@tonic-gate Done:	return (dumpfilters((char *)0));
91*7c478bd9Sstevel@tonic-gate }
92